Cardiac electrode



FIG. 1 is a perspective view of the present invention, illustrating the gel portion surrounded by the insulating ring;

FIG. 2 is a bottom side view of the present invention;

FIG. 3 is a front plan view of the present invention;

FIG. 4 is a back plan view of the present invention; and,

FIG. 5 is a side view of the present invention.

The broken line, indicating an electrical conductor, which is shown in FIGS. 1, 3, 4 and 5, is for illustrative purposes only and forms no part of the claimed design. 

We claim the ornamental design for the cardiac electrode, as shown and described. 